Dump-car.



H. E. THOMPSON.

' DUMP GAR. APPLICATION FILED JUNE 3, 1909.

Patented Dec. 7', 1909.

Wil a/asses, MG

H. E. THOMPSON.

DUMP CAR.

APPLICATION FILED JUNE 3,.1909.

949,598a Patented Dec.-7, 1909.

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DUMP 0m.

APPLICATION FILED JUNBS, 1909. v v Patented Dec. 7, 1909.

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HARRY E. THOMPSON, or KNOXVILLE, Tennessee, Assienon To WILLIAM J. onrvnn MANUFACTURING cor/many. n conronn'rron orlrnnnnssnn.

DUMP-CAR.

Specification of Letters Patent.

- Patented Dec. 7, i909.

To all whom it may concern:

Be it known that l, HARRY THOMPSON, a citizen of the United States, residing at Knoxville, in the county of Knox and State .5 of Tennessee, have invented a new and useful Improvement in Dump-Cars, of which the following is a specification, reference being had to the accompanying drawing.

My improvement relates particularl to dump cars constructed for the tilting o the body to either side and comprising mechanism for controlling such movement of the car by means of air or steam power applied.

through cylinders and pistons.

The object .of the improvement is to provide a powerful and eflicient and easily controlled mechanism for tiltingand righting the bodies of large dumpucarsjusedin construction work and for similar purposes.

In the accompanying drawings, Figure 1 is a side elevation of a little more than onehalf of a car embodying my improvement, the middle of thecar being indicated by the line 2-2, and the two halves of the car at each side of said line being identical; Fig. 2

is a section on the line 2-2 of Fig. 1, looking toward the right, this section going around a portion of the parts; Fig. 3 is a section similar to Fig. 2, portions of the parts being omitted and the car body being tilted; Fig. 4: is a sectional elevation of one of the hinges .upon' which the car body turns; Fig. 5 is a transverse upright section of said hinge; Fig. 6 is a detail elevation of one of the lifting cylinders and the parts connecting said cylinderwith the car body; Fig. 7 is a detail of the lifting mechanism shown in the position assumed whilecompleting the lifting of one side of the car body into the horizontal position.

Referring to said drawings, A is one of the trucks by which the car is supported, a similar truck being under the opposite end of the car. Upon said trucks rest two horizontal parallel beams or sills, B, which'constitute the chief members of the underefram ing. Said sills are at the same elevation an near each other, and-at opposite sides of and equi-d-istant from the "upright'middle longitudinal plane of the can, Chairs, C, extend across and rest upon's'aid sills and are se- 1. Each chair has cured thereto by bolts, two upward-directed ears, 2, which stand opposite each other in the middle, long tudinal, upright plane of the car. And each ear 7 ing through said has an aperture, 3, on an axial line which is horizontal and in said plane.

Dis the car body. To the bottom thereof above each chair, C, is secured a hinge member, E, which extends between the ears, 2, and has an aperture, 4:, axially in' line with the apertures, 3. A pin bolt, 5, extends through the apertures, 3, of the ears, 2, and the aperture, 4, of the hinge member, E. Any desired number of said chairs and hinge members may proper support. The complete car of the drawings has nine such chairs and hinge members. By means of said chairs and members and said\bolts, -the car body is supported in such manner as to permit tilting to either side or standing 'in the horizontal position. To normallyshold the car body in the horizontal position, stay chains, 6, are applied at each side of the car, eac chain being attached by its upper end to an angle plate, 7, on the bottom of the car body near the adjacent outer edge of the latter andto a clevis, 8, which is securedfto thread- -jacent side of the truck by a bolt, 9. All of v a hook, 10, which persaid chains comprise mits the separating of the chains at the side of the car body which is to go up when said body is to betilted.

Midway between the two ends of the car, a ban er, F is applied to each of the beams 01'' sil s. The up er ends of said hangers are secured to sm .sills by bolts, 1.1, extendhangers and said sills. The/lower ends of said hangers are turned horizontally toward each other and meet be used to give'the car body and are joined by a bolt, 12. These hangers form supports for the cylinders, Gr. Said cylinders are upright, and one is applied to each hanger by means of bolts, 13, whereby said cylinders are held rigidly. In each cylinder is a piston, 14, bearing a rigid stem, 15,- extending upward throughthe upper head, 16, of thepiston. Upon the head of each piston are seated two rigid guides, 17 one being at each side of the path of the d piston stem and nowider than the stem.

Above each piston a downward-directed hanger member, 18, is secured rigidly to the bottom of the car body, D. At its lower end "said hanger member has abearing, 19, which is horizontal'and parallel to the length of the car. At each side of said bearmg is placed the eye, 21, of a link, 20, and 'ashaft or pintl'e. 22,. extends horizontally through said eyes and said bearing. Said links are,

duplicates of each other and extend downward to the pistonstem. Each of said lmks has a curved slot, 23, extending from near the eye, 21, downward to the lower end of the link. At its lower end, said groove s extended upward to f rm the recess, 2%. Along their middle, sai links are extended outward away from the middle of the car and there joined by a bar, 25. Said bar is in proper position to enter and rest in a notch, 26, on the hanger member, 18, when the links .are turned outward and upward toward the bottom of the car body. 111 such position, the further upward movement of saidlink is prevented. (See Fig. 7 and the right hand portion of Fig. 3.) By thus engaging said hanger members, said links virtually abut against-the car body, and the upward turning of said links is thereby limited.

On the piston, 14, is a cross-shaft, 27, which is parallel to the length of the car. Said shaft extends through the slots, 28, far enough 'to receive a cotter pin or similar key, 29, by which said links are held to said shaft.

Below each link, upon each piston head is seated an abutment member, 30, against which bears the edge of the adjacent link which is directed toward the middle longitudinal plane of the car when the adjacent side of the car is below the'horizontal position, as will be hereinafter described. In

the drawings, said abutment is shown in the; form of an anti-friction roller, such roller being used for the purpose of reducing resistance to the movement of the link.

A pressure fluid supply pipe, 31, is tapped into the lower end of each cylinder and leads to any suitable source of steam, air, or other fluid supply, not shown, whereby such fluid may be forced into said cylinder.

The operation is as follows: The car body being in the horizontal position, as shown in Fig. 2, the chains, 6, connected, and the links, 20, and both pistons in their lower positions, assuming that the car is to be tilted toward the right, as shown in Fig. 3, the left hand chain, 6, is disconnected, and steam or other fluid is driven into the lower end of the left hand cylinder through the pipe,"? t whereupon the piston andthe cross-shaft, 27, ,are driven upward, said cross-shaft entering the recesses, 24', of the slot, 28. With the further upward movement of the piston, 'said cross-shaft forces said link upward, causing the latter to push against the hanger member, 18,1 whereby the left hand side of the'car body is pushed upward, while the right hand side moves downward, the car body tilting on the hinge formed by the chairs, C, members, E, and bolts, 5. This movement continues until the piston reaches its upper limit. As soon Thus the bar, 25, is ready to engage the notch, 26, during the reverse movement as described below. To support the car body at. thelimit of such tilting, suitable buffers, not shown, may be placed upon the car body to bear upon the undenframing. Wht-uthe car is to be tilted in the reverse direction to again bring it into the horizontal position the left hand pipe, 31, is cut olffrom the fluid supply and opened .for exhaust, and the power-fluid is turned into the lower portion of the right hand cylinder through the right hand pipe, 31, whereby the right hand piston is driven upward, the cross-shaft,

27, bearing upward in the slots, 23, the bar, continuing to rest'in the notch, 26, and the links moving obliquely upward and toward the right while the cross-shaft, 27, moves directly upward, until the eyes of the link, 20, are close to said cross-shaft,

the latter resting in the upper end of the slots, 23. As soon as the left hand pipe,

31, was connected for exhaust, the left hand piston'moved downward by gravity until the cross-shaft, 27, hung in the lower portion of the slot, 23, of the adjacent links,

is now thus. being moved upward, the left hand side descends correspondingly, allowing the left hand piston and the left hand I links to descend by gravity into their nor mal positions. The left hand stay chains are now again connected. Then the right hand fluid pipe is set for exhaust,whereupon the right hand piston and links descend by gravity to their normal positions (the positions shown in Fig. 2),the pistons and links at each side of the car being again ready for lifting. I claim as m'yinvention:

1. In a dump car, the combination with trucks, under-framing, and a car body mounted upon said under-drainingfor tilting sidewise, of means for normally holding the car body in the' horizontal position,

upright cylinders located at opposite sides of the middle, longitudinal, upright plane of the car, fluid pipes'leading into the lower "portions of said cylinders, upright pistons in' said cylinders, piston stems rising from said pistons, links hinged at theifupper ends to the carbody and slidably engaged with said piston stems and formed at their v2O. While the right hand side of the car of the car, fluid pipes leading into the lower portions of said cylinders, upright pistons in said cylinders, stems rising from said pistons, and members interposed between said stems and the car body and arranged for non-slidable engagement with said stems during the ugward movement of the latter and for slidab e engagement with said stems during the descentvot' the latter and while the latter are at their. lower limit and said members are descending.

3. In a dump car, the combination with trucks, under-framing, and a car body mounted upon said under-framing for tilting sidewise, of means for normally holding the car body in the horizontal position, upright cylinders located at opposite sides of the middle, longitudinal, upright plane of the car, fluid pipes leading into the lower portions of said cylinders, upright pistons in said cylinders, piston stems rising from said pistons, slotted links hinged at their upper ends to the car body and adapted to abut against the adjacent cylinder, and across shaft upon said piston and extending into the slots of said links.

'4. In a dump car, the combination with trucks, under-framing, and a car body mounted upon said under-framing for tilting sidewise, of means for normally holding the car body in the horizontal position, upright cylinders located at opposite sides of the middle, longitudinal, upright plane of the car, fluid pipes leading into the lower portions of said cylinders, upright pistons in said cylinders, piston stems rising from said pistons, pairs of links hinged at their 7 upper ends to the car body and slidably engaged with said piston stems and formed at their lower ends for temporarily non'slid ably engaging said stems.

5. In-a dump car, the combination with trucks, under-framing, and a car body mounted upon said underdraming' for tilting sidewise, of means for normally holding the car body in the horizontal position, upright cylinders located at opposite sides of the middle, longitudinal, upright plane of the car, fluid pipes leading into the lower portions of said cylinders, upright pistons in said cylinders, piston stemsrising from said pistons, links hinged at their upper ends to the car body each having a slot and a reccss at the lower end of said slot, and cross- .shafts located upon said piston stems and extending into said slots.

6. In a dump car, the combination with trucks, under-framing, and a car body mounted upon said under-framing for tilting sidewise, of means fornormally holding the car body in the horizontal position, up-

right cylinders located at opposite sides of the middle, longitudinal, upright plane of the car, fluid pipes leading into the lower portions of said cylinders, upright istons in said cylinders, piston stems rising rom said pistons, links hinged at their upper ends to the car body and adapted ii) turn laterally to a fixed extent and slidably engaged with said piston stems and formed at their lower ends for temporarily non-slidably engaging said stems.

7. In a dump car, the'combination with trucks, underframing, and a car body mounted upon said under-framing for tilting sidewise, of means for normally holding the car body in the horizontalposition, upright cylinders located at opposite sides of the middle, longitudinal, uprightplane of the car,.fluid pipes leading into the lower portions of said cylinders, upright pistons in said cylinders, piston stems risin from said pistons, hanger members applie to the bottom of the car body above said pistons, links hinged at their upper ends to the hangers and adapted to turn laterally against said han ermembers and slidably engaged with sai piston stems and formed at their lower ends for temporarily non-slidably engaging-said stems.

8. In a dump car, the combination with trucks, under-framing, and a car body mounted upon said under-framing for tilting sidewise, of means for normally holding the car body in the horizontal position, upright cylinders located at opposite sides of the middle, longitudinal, upright plane of the car, fluid. pipes leading into the lower portions of said cylinders, upright pistons in said cylinders, piston stems rising from said pistons, tom of the car body above said pistons, links hinged at their upper ends to said hanger members and adapted to turn laterally against said members and having slots at the lower end of each of which is a recess, and cross-arms on said piston stems extend ing into said slots.

hanger members applied to the bot 9. In ,a dump car, the combination with trucks, under-framing, and a car body mounted upon said under-framing for tilting sidewise, of means for normally holding the car body in the horizontal position, upright cylinders located at opposite sides of the middle, longitudinal, upright plane of the car, fluid pipes leading into the lower portions of said cylinders, upright pistons in said cylinders, piston stems rising from said pistons, hanger members applied to the bottom of the car body above each of the pistons, links hinged at their upper ends to the hanger members and adapted to bear at I name, in presence of two Witnesses, this 29th their lower ends upon the cylinders and turn day of May, in the year one thousand nine laterally to a limited extent and having slots lnn'ldred and nine. at the lower end of each of which is a recess, HARRY E. THOMPSON. and cross-shafts located upon said piston Witnesses: stems and extending into said slots. R. E. GODDARD.

ln testimony whereof I have signed my SITES. 

